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首页> 外文期刊>Climatic Change >Adaptation benefits and costs of raising coastal buildings under storm-tide inundation in South East Queensland, Australia
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Adaptation benefits and costs of raising coastal buildings under storm-tide inundation in South East Queensland, Australia

机译：在澳大利亚昆士兰州东南部，在洪水泛滥的情况下提高沿海建筑的适应效益和成本

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Pathways of adapting the built assets for future risk reduction are highly uncertain because of changes in socio-economic trends and climate. To provide solid foundation for better adaptation planning, this paper presents a statistical approach to investigate the future direct damage loss and the benefit of adaptation through elevating building floors of residential and commercial buildings affected by storm-tide hazard and sea-level rise in South East Queensland, Australia, particularly the implication of different extents of adaptation to policies. Because of projected socio-economic growth, it was found that, if considered separately, building stock growth causes twice as large as sea-level rise does to the potential damage loss. Adaptation by elevating new buildings alone is more cost-effective and socially acceptable than by elevating both new and old buildings. It is concluded that even with limited adaptation, immediate but less long-term net benefits could be achieved by focusing adaptation on the most vulnerable coastal housing. Somewhat pre-emptive adaptation that lifts more coastal housing in wider coastal area in the immediate term to accommodate future storm tides gives longer-term net benefits, though incurs higher adaptation costs. However, too much over-adapting may be undesirable as it incurs unreasonably high initial and on-going costs while the benefits of it could only be reaped over unrealistically long time. Geographical extent of asset adaptation should be decided in accordance with the planning time horizon to avoid either under- or over-adaptation.
机译：由于社会经济趋势和气候的变化，调整建筑资产以减少未来风险的途径非常不确定。为了为更好的适应计划提供坚实的基础，本文提出了一种统计方法，通过升高受东南部暴风雨灾害和海平面上升影响的住宅和商业建筑的建筑楼层，研究未来的直接破坏损失和适应的好处澳大利亚昆士兰州，尤其是在不同程度上适应政策的含义。由于预计的社会经济增长，发现如果单独考虑，建筑存量增长对潜在破坏损失的影响是海平面上升的两倍。仅通过增加新建筑物的适应性改造比通过增加新建筑物和旧建筑物的改造更具成本效益，并且在社会上可以接受。结论是，即使适应能力有限，通过将适应重点放在最脆弱的沿海住房上，可以立即获得但长期的净收益却很少。某种先发制人的适应措施可以在短期内在较宽的沿海地区提供更多的沿海住房，以适应未来的风暴潮，尽管可以带来更高的适应成本，但可以带来长期的净收益。然而，过多的过度适应可能是不希望的，因为这会导致不合理的高昂的初始和持续成本，而其益处只能在不切实际的长时间内获得。资产适应的地理范围应根据规划时间范围来确定，以避免适应不足或适应过度。

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